853 citations · 4.3k across the 72 of their papers we have counts for
6 papers · 1 filter
Lower bounds on the squashed entanglement for multi-party systems
Wei Song
Squashed entanglement is a promising entanglement measure that can be generalized to multipartite case, and it has all of the desirable properties for a good entanglement measure.…
Locally accessible information from multipartite ensembles
Wei Song
We present a universal Holevo-like upper bound on the locally accessible information for arbitrary multipartite ensembles. This bound allows us to analyze the indistinguishability…
Invariant information and complementarity in high-dimensional states
Wei Song, Zeng-Bing Chen
Using a generalization of the invariant information introduced by Brukner and Zeilinger [Phys. Rev. Lett. \textbf{83}, 3354 (1999)] to high-dimensional systems, we introduce a comp…
Reheating and Cosmic String Production
Chao-Jun Feng, Xian Gao, Miao Li +2
We compute the string production rate at the end of inflation, using the string spectrum obtained in \lss in a near-de Sitter space. Our result shows that highly excited strings ar…
Bounds on the multipartite entanglement of superpositions
Wei Song, Nai-Le Liu, Zeng-Bing Chen
We derive the lower and upper bounds on the entanglement of a given multipartite superposition state in terms of the entanglement of the states being superposed. The first entangle…
Quantizing Strings in de Sitter Space
Miao Li, Wei Song, Yushu Song
We quantize a string in the de Sitter background, and we find that the mass spectrum is modified by a term which is quadratic in oscillating numbers, and also proportional to the s…